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Finding the Fourth Proportional to 236,613.58, 354,708.85 and 86,819.12

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Solution

The fourth proportional to 236,613.58, 354,708.85 and 86,819.12 is: 130,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,613.58 : 354,708.85 = 86,819.12 : x
  2. Step 2: Convert to fraction form
    236,613.58/354,708.85 = 86,819.12/x
  3. Step 3: Cross multiply
    236,613.58x = 354,708.85 × 86,819.12
  4. Step 4: Simplify right side
    236,613.58x = 30,795,508,473.77
  5. Step 5: Solve for x
    x = 30,795,508,473.77/236,613.58
  6. Step 6: Final answer
    x = 130,151.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.